Gearing j



June 10, 24- 1,497,368

N. FRIES ET AL G-EARING FOR DISPENSING PUMPS Filed Avril 4. 1921 2Sheets-Sheet 1 N. FRIES ET AL GEARING FOR DISPENSING PUMPS June 10,1924.

Filed April 4. 1921 2 Sheets-Sheet 2 Patented June 10, 19248 epplieatienliter]. April, 4.,

T 0 all whom it Wiftj/ concern:

lie it known that we hlnsiron. il 'hitlbh FRANK B. lilinnns, and thronesU. Bimini. citizens of the United t ltzites oi finierica. and residentsof Fort lViryne, in. the county of Allen and State oi lnciana, haveinventinproveinexits in ed certain new and usctui l. Hearing forDisjiiensing Pumps, of which the following is a specification.

This invention relates to improvements in gearing for dispensing pumpsoi? the crank operated reciprocating type, and the object thereoi is toprovide gear?i tor actuating the pump. so constructed that by simplemanipulations (it the crank the pump plunger wll be driven according lin one direction or the other as deli-ed and through the medium ofgearing ot' dillere t ratios. Thus, during the suction and dis-- chargestroke of the pump. gearing oi? the low ratio is en'iployed whichaiiiords ease of? operation, and during the return strolre ot the pumpwhich requires coinparetirely less force, gearing ot a higher ratio isemployed through which the return stroke is effected with comparativelygreater velocity. By this construction the physical energv required tooperate the crank during the suction and discharge stroliie zitndreturnstrolre of the pump is apjiroximatelv uniitorin, while the return strokeis effected with much greater rapidity than the suction and dischargestroke which requires greater force. A further purpose of the inventionis to construct the mechanism for shifting engagement from one gearingto the other so that the operation oil shitting may he easilyil-CCOlTlPliSllBd at any stage during the cycle of: movement of the pumpby simple manipulation of the crank.

The objects of the improvement are ac complished hy the constructionillustrated in the accompanying drawings in which:

Fig. 1 is an elevation of the housing; which is shown partially brokenaway to en" pose the gearing;

Fig. 2 is an end elevation of the apparatus showing portions broken awayto expose the working parts;

Fig. 3 is a detail view of the adjustahle engaging member; and

Fig. 4.- is a detail plan "View oi the stop mechanism showing ahorizontal section on the line mof Fig. 3.,

t'liniilur characters ot reference indicate corresponding: partsthroughout the several views. and reterrii now to the same:

l is a pump bar a julnip-rod 2 by which it is actuated. is a rack-ha!fixed on the puiup-rod :iiul irejecting up through the sear housing 1:and having; a series of lugs :3 3. and that project therefromrespertirelj in diitlerent vertical planes. inr'wahle in member 53mounted upon a ion 'itudiua adjustable shait 9 in the housin is arrangedto he positioned selecvelv line the paths of the several lugs on theraeln a n d a oi adjustable stops 10 are arranged to in ercept and limitmore merit of the one? member in. its respective zul ."ed msitions. Thepurpose of the en member and adjustable stops and lhe lugs on thrack-bar is to interrupt movement oi the pump in its discharge strohe atvarious-1 stages thereo'l accordingly as tile quantity oi? liquid to bedischarged hv the pump may he predetermined.

' c g; '7 l'iousingr 4; is siu iported upon .ndnre. l1 mounted onthepump head 12 and contains the near-in by whicii the rackhar isactuatmi. The gearing is comprised of a piniiui l3 tired on acountershajtt lei; and on; god in mesh with the rack-bar. hi e upon thecoimtershatt are lined an insir l5 and intermediate gear 16. A ft 1'? isrotatably mounted in the housing); and has also longitudinal movementtherein. and upon the drive-shaft are loosely mounted two clutchactuated gears 18 and 19 that have constant meshing engageclutch actuted nears, upon the driveshatt is tired a ClIltCL-i rnetnher thatadapted to selectively engage the clutch gears 18 and accordingly as thedrive-shaft is shifted longitudinally in the housing. The gear 18 hasone end thereof a disk 2]. that by hearing asrainst the adjacent end oithe internal r prevents disalignment of the clutch gem? therewith. Alsothe intermediate near 1.6 a similar disk 22 at one end thereof that. hhearing against the adjacent end oi the clutch. gear 19 prevents itsdisalipgninent therewith.

The driveshattt 17 has hired upon its outer end a crank 23 by which itis rotated and is also shifted longitudinally so as to selectivelyengage the clutch 20 with the clutch gears 18 and 19.

In the operation of the invention, the engaging member 8 is positionedin the path of one or the other of the lugs 5, (5, or 7 on the "ack-baraccording to the predcten mined quantity of liquid to be discharged, andthe drive-shaft is shifted longitudinally outward by manipulating thecrank so that the clutch engages the clutch-gear 18. The crank is thenturned so that the countershaft is rotated through the medium of theclutch gear 18 and internal gear 15 which causes the pinion 13 fixed onthe shaft 11- to lift the rack-bar until its upward movement isinterrupted by the engaging member Which intercepts one or the other ofthe lugs, accordingly as adjusted, and impinges a ainst thecorresponding stop, and thus the discharge stroke of the pump which isactuated by the rack-bar is limited.

The driveshaft is then shifted inwardly so that the clutch is withdrawnfrom engagement with the clutch gear 18 and operatively connected withthe clutch gear '19, whereupon further turning movement of the crank inthe same direction as in the former instance causes the countershaft torotate in the opposite direction through the medium of the clutch gear19 and intermediate gear 16, thus downward movement is imparted to therack-bar by the pinion 13. The gear ratio between the clutch gear 19 andthe intermediate gear 16 being approximately equal, the downward orreturn stroke of the rack-bar is effected quicker than the upward ordischarge stroke which is effected through the medium of the clutch gear18 and the internal gear 15 which are of unequal ratio, and the leveragecorrespondingly greater. Thus, in making the stroke requiring thegreatest force greater leverage is utilized, while the return strokerequiring less force is made comparatively quicker.

By this construction the rack may be driven upwardly with great forceand downwardly with great rapidity, and may be reversed in the directionof its stroke at any stage thereof by simple manipulations of the crank.

lVhat we claim is:

1. In mechanism of the class described, a driven member; a gearing foractuating said member; two clutch gears engaged with said gearing; anda. cranking device for said. clutch gears including a clutch adapted tobe shifted selectively into engagement therewith by longitudinaladjustment of the cranking device.

2. In mechanism of the class described, a support having bearingstherein: a driven member; a countershaft having actuating relation withsaid member; a drive-shaft including a crank; two clutch gears looselymounted on said drive-shaft; an intermediate gear fixed on thecountershaft and meshing with one of said clutch gears; an internal gearalso fixed on the countcrsha'l't and meshing with the other clutch gear:and means fixed on the driveshaft adapted to selectively engage theclutch gears accordingly as the drive-shaft is adjusted longitudinally.

3. In mechanism of the class described, having a driven member: acranking device including two clutch gears and a clutch for selectivelyengaging the clutch gears; and a gear mechanism in constant engagementwith the driven member and the two clutch gears.

1. In mechanism of the class described, having a driven member; a crankactuated drive-shaft, a gearing engaging the driven member; two clutchgears, each having actuating relation with. the gairing and in whichsaid drive-shaft is longitudinally movable; a clutch fixed on thedrive-shaft adapted to selectively engage said clutch gears accordinglyas the drive-shaft is longitudinally positioned: and means in connectionwith the gearing and said clutch gears adapted to hold the clutch gearsspaced apart.

In testimony whereof we affix our signa tures, in presence of twowitnesses.

NESTOR FRIES. FRANK B. ETLERS. GEORGE U. BRAKE. Witnesses:

MA'IILDA ME'r'rLER, WALTER G. BURNS.

